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How the Nervous System Works

How the Nervous System Works. HB&H Chapter 7.1 Pages 190-194. Jobs of the Nervous System. This system includes your brain, spinal cord and the nerves throughout your body Also includes sense organs like eyes and ears. Jobs of the Nervous System.

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How the Nervous System Works

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  1. How the Nervous System Works HB&H Chapter 7.1 Pages 190-194

  2. Jobs of the Nervous System • This system includes your brain, spinal cord and the nerves throughout your body • Also includes sense organs like eyes and ears

  3. Jobs of the Nervous System • Your nervous system operates in 3 different ways: • Receiving Information • Responding to Information • Maintaining Homeostasis • What is a Stimulus? A Response? • Homeostasis: stability of an organisms internal environment

  4. Neurons • Neuronsare cells that carry information through your nervous system • The information neurons carry are called nerve Impulses • Impulses travel up 120 meters per second

  5. Neurons Structure • The impulse is then sent away from the Neuron through an Axon(like arteries) • Neurons have a nucleus inside a Cell Body • Impulses come to the Cell Body from Dendrites

  6. Neuron Types

  7. What to Work On • Read Section 7.1 (pages 190-194) • Answer the Section Review Questions (page 194, #’s 1-3) DUE: Friday, February 17th

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